三个红色和两个黑色
: W) Q( Q7 j' e4 l4 p$ ^5.39.217.77TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。; o- V6 q7 D* m
最后那个说我不知道我戴什么颜色帽子.tvb now,tvbnow,bttvb% A8 D n; D4 B; X! A. S
- the front #1 , #2 must not be black/black. Otherwise, #3 will know he is red. #1/#2 must be red/red or red/black or black/red.
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. p X* T) b: W& _6 htvb now,tvbnow,bttvb中间那个说我也不知道我戴什么颜色帽子.
+ c- G* t% F. [) g0 Y- for #2, if he see #1 wearing black, he can be sure he is red. since #2 cannot be sure, then #1 must NOT be wearing black.& O O/ C# _' J$ j
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但是第一个说我知道我戴什么颜色帽子.
% N6 u! U( {' H) ?8 a+ v; ?& f( Etvb now,tvbnow,bttvb- #1 must be wearing RED |
發表於 2008-12-3 10:06 AM
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